Hydraulic motor.



No. 897,Q62. PATENTED SEPT. 8, M308.

W; R.- GLARKSoNl HYDRAULIG MoToR.-

APPLICATION FILE!) MAY 20, 1907.

Z SBBETS -SHEET 2.

stream, and the energy to the shore and from "wherever desired.

j same parts in all i orroris wrLnIAirn. oLAnKjsonoF Tanino, 'WASHINGTONHYDRAULIC Moron.v

To. 'all fwhm if mayconcern:

Be it known that 1I, WILLIAM R. CLARK-A soN, a citizen of the UnitedStates, residing at Tenin'o, Vinthe county of Thurston'and State ofWashington, have invented anew and use- U which the following'. `isaspecification. i

This invention relates to a hydraulic motor of the type known as currentwheels in which a water wheel is rotated by the current of a derivedtherefrom carried by various-means to some .place of transformajtion.

` The object ofl theinvention is to provide a hydraulic motor comprisingan unders'hot water wheel journaled on afloat connected by tension barsto an anchorage in such -manner that the float with its water wheel willalways be held in line withthe flow of the, current, and that howeverhigh o r low the water in the stream may be, the depth of submergenceofthe water wheel will remain constant. Power is transmitted by belts,chains or other means from the water wheel thence by crank or belt Inthe accompanying drawings z-Figure 1 is a plan view ofthe motorcomplete. Fig. 2 is a side elevation of the same with a portion of thefloat broken away. Fig. 3 is a central section through the water wheel.Fig. 4y is a view 'of a detail part.

Similan numerals ofqreference indicate the the figures.

Attached to a shaft 1,.by means hereinaf- 'tcr described, is anundershot water wheel 2,

the shaft 1 being journaled in bearings 3 bolt ed oneach side ofa float4 of any approved construction, but here shown in the form of a doublescow open from end to end and connected together at each end 5, above'the sur- A lface of the stream,

by suitable timbers which may be arranged'to form areceptacle 6 forl iballast.

. Projecting outwardly from the bank 7 of the stream above the level ofhigh water, and firmlyn anchored to said bank, are-two spaced 'beams 8,parallel to each other, on which are v the anchored beams '8 rigidlybolted aplurality of cross beams 9 the ends of which are shownprojecting beyon for a short distance.

'On the down stream ends of the cross beams i .9 are bearings 10 inwhich is mounted a rotatable shaft 11. Pivotally. attachedV to the shaft11 are two anchor bars 12, which extend from said shaft 11 to the waterwheel n Specification of Letters Patent.

Application med May 20,1907.

' na'ledv on fixed bearings.

able position thereon is bolted a Patented Sept. 8, 19085.

Serial No. 374,645.

shaft 1 the bars beingy disposed on opposite sides of the float 4 andjournale'd on'said shaft 1 near the outer face of each bearing 3.

The. anchor bars l2 are parallel to each otherand are each provided witha turn buckle 13 for increasing or decreasing the distance between theshafts 1 and 11. y v

Keyed to the shaft 11, a short distance beyond the anchor bars 12 aresheaves 14 aroundveach of which a rope, cable `or chain.

15 passes to similar sheaves 16 on the shaft 1 of the water wheel. Bymeans of this transmission mechanism the energy derived from thefloating water wheel is conveyed from athe rising and falling shaft 1 tothe shaft ll1 jour- The direction of the current of thestream-1ndicatedby the arrow A-keeps the float 4 always on the.-

down stream side of the projecting anchor beams 8, and as the streamrises and falls, the float moves with it, swinging in an arc around theshaft 11 as an axis, the rope, cable or other power transmission beingthereby always kept at the same tension by the anchor bars v12. Shouldthe rope-belts 15 become slack, a few rotations of the turnbuckles willtighten them again;

lpon each anchored beam S in any suitbearing 17 for a cross shaft 18provided with cranks 19, between the bearings 17, a belt wheel 20 on oneend and a bevel pinion 21 kon the other. end.y The bevel pinion 21 is onthe end nearest the shaft 11 and meshes with a similar pinion 22y onvsaid shaft. The power thus conveyed to the shaft 1.1 is distributed bythe cranks 19 or the belt wheel 20.

The water wheel 2 which occupies the entire width ofthe space betweenthe twin scows 4, except a clearance for the ends of the paddles,comprises two or more hubs 23 keyed Each hub is made of t'wfocircumferentially divided sections 25 and 26, duplicates of each other,and connected together in any suitable way. The hub sections are madesomewhat disk shaped, each havingpa boss or hubv27 into which-a-fastening bolt 24 is The abutting face of each hub section is pro dvvided with a series of equally spaced radial slots 28, which, when thesections are brought together, form suitably shaped sockets for theinner ends of tubular or rod like spokes 29 the Outer ends of which arecurved away from the direction of rotation of the water wheel 2, *asclearly represented in Fig. 1. When the or bolted to the shaft 1l bybolts 24.

threaded.

.- of the vother hub or hubs.

hubs 23 are assembled on the shaft 1 the spokes 29 of each hub arealined With those yFixed to the curved ends of each series of alinedspokes 29 is a paddle 30 bent to the same arc as the ends of the spokesand fastened thereto preferably by Ufsha ed bolts 31. By shaping thepaddles as a ove described, they move more quietly and easily throughthe water, and withdraw therefrom with less friction than would be thecase with radially disposed paddles, as they do not lift the water intheir upward iiight.l The spokes radiating from each hub are braced bymeans of a concentric ring 32 fastened to each spoke by a U- shaped bolt33.

The o eration of the hydraulic motor may be readi y understood from theabove de! scription and it is only necessary to add that the water Wheelwill rotate as Well when the Water in the stream is so low that theanchor bars are approximately perpendicular as when theyarenearlyhorizontal; the

speed and power obtainable from the motor depending however upon theforce of the current. by means of ballast laced onv the float which willcause more or ess of the Width of th paddles to be submerged.

Having' thus described the invention what is claimed iszl f.

'Ihe combination With a lined structure i disposed to be secured uponthe banky of a This can be regulated in a measure f stream and tooverhang the stream; of a float, longitudinally adjustable anrror barsconnecting the oat with the side ortions of the liXed structure, said:float and ars being extended in the direction of movement of thestream, a drive shaft journaled upon the float, oppositely vdisposedconcave-convex disks u on the shaft and arranged in pairs, said diskshaving registering grooves in their adjoining faces, spokes Within thegrooves, means extending through the disks and engaging the shaft forholding the disks in frictional engagement with the spokes, each of saidspokes having a curved terminal portion, transversely curved 'bladesparallel Witl -e the shaft and secured u on-the curved ortions of thespokes, sai portions exten( ing transversely of the blades andconstituting reinforcements therefor, a lbrace ring connectedto each setof spokes, a driven shaft journaled upon the overhang-ing frame-andIneens l for transmitting motion from the drive shaftv to the drivenshaft, said means being disposed to be tightened by the adjust.- ment ofthe anchor bars.

In testimony that I claim the foregoing asmy own, I have hereto alhxedmy signature in the presence of two Witnesses.

WILLIAM R. CLARKSON.

